Arrangement for measuring gas concentrations
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United States of America Patent
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Apr 28, 2020
Grant Date -
Jan 11, 2018
app pub date -
Jun 30, 2017
filing date -
Jul 11, 2016
priority date (Note) -
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Abstract
An arrangement for measuring gas concentrations in a gas absorption method, wherein the arrangement includes a plurality of light sources, a measuring cell, at least one measuring receiver and an evaluation apparatus. The measuring cell has a narrow, longitudinally-extended beam path with an entrance-side opening diameter B and an absorption length L with L>B, wherein the measuring cell has a gas inlet and a gas outlet wherein a plurality of light sources of different wavelength spectra is grouped into a first light source group wherein an optical homogeniser is interposed between the first light source group and the measuring cell, wherein, in particular, the homogeniser is coupled to the light source group directly or via a common optical assembly.
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